mean and Standard deviation of ratio of normal variables?
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If we have, Z=X / Y,
where X and Y have different means and normally distributed, then
what is the mean and standard deviation of Z?
We know that is a Cauchy Distribution, so Z may be approximately normally distributed. Here is the Journal article discussing the ratio of normal variables:
My question is, can we find exact distribution of Z ?
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Torsten
2019-4-12
I think it will be better to ask here:
http://mathforum.org/kb/forum.jspa?forumID=231
回答(1 个)
Bjorn Gustavsson
2019-4-14
Well, you have the document to read. If that's not good enough there is always:
Hopefully you find what you're looking for there.
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